Rear mounted child bike seat carry weight 9 22 kg age 1 5 years weight 43 kg colours grey black installations seat post frame compatible with tube 28 40 mm height 71 cm width 39 cm depth 48 cm material polypropylene certified en 14344 comfort equipment with relax function with adjustable inclination of 20 safety features with helmet recess with belt system 3 point safety harness